Henky kuhn



(No Model.)

H. KUHN.

'WATER PRUOF AND SENSITIZED PHOTOGRAPHIG MOUNT. No. 450,963. PatentedApr. 2l, 1891.

A TT OHNE YJ.

UNITED STATES PATENT OFFICE.

HENRY KUIIN, OF SPRINGFIELD, MISSOURI, ASSIGNOR TO TIIF. KUHN CRYS-TALLOGRAPH MANUFACTURING COMPANY, OF SAME PLACE.

WATER-PROOF AND SENSITIZED PHOTOG RAPH IC MOU NT.

SPECIFICATION forming part of Letters Patent No. 450,963, dated April21, 1891.

Application filed October l5, 1890. Serial No. 368,166. (No model.)

To @ZZ wiz/0712, it may con/ecrit.- rollers or cylinders, and is thenready to re- Be it known that I, HENRY KUHN, of the ceive thesensitizing solution or sensitive coatcity of Springfield, Greenecounty, and State ing, which preferably consists of a collodion ofMissouri, have invented certain new and or gelatine emulsion of suitablenature, and 5 useful Improvements in later-Proof and this is spread orcoated evenly over the smooth 55 Sensitized Photographic Mounts, ofwhich the surface last mentioned.

following is a full, clear, and exact descripl represents the coat orcoatings of surfaction, reference being had to the accompanyingmaterial, comprising barium nitrate and ing drawings, forming a parthereof. barium sulphate or colored chalk or chalks,

ro My invention relates to photographic and G indicates the sensitivecoating. 6o

mounts; and it consists in the new article rlhree or more colors, eitherdistinct or of manufacture hereinafter specified and blended, may bebrought out by coating the claimed. cards with different-coloredsuperposed coat- In the drawings, Figure l is an enlarged ings ofaniline emulsions and one color being r 5 section of a mount, thesection whereof is applied after the first has dried. To be more 65taken on the line x @c of Fig. 2; and Fig. 2 is explicit, I firstprepare a suitable aniline a broken plan view of the same, showin g theemulsion, or a number of different-colored various stages ofpreparation. emulsions, which may be made up of equal 1 represents asheet of card-board, preferparts of alcohol, ether, pyroxyiine, andchlo- 2o ably of such size as will make a considerable ride of strontiumor chloride of lithium, and 7o number of mounts, which is first renderedwitlrthe necessary quantity of coloring-matwater-proof by dipping into asolution of 'inter, tanilinc.) The colors will be held, as I solublesoap-such, for instance, as ordinary have found, by the emulsion, andthe whole castile-soaphaving a quantity of alum inwillformavery thinsensitive film 011 the cards 25 corporated therewith, and then the sheetis when spread thereon. In placing different- 75 dried by exposure toheat or otherwise, and colored emulsions upon the cards an initialthereby a shell 2, that is substantially watercoating should be fiowedover them or applied proof, will be formed upon the outer surfaces bysuitable machinery (not shown) which I of said sheet. The sheet is nowtreated in a havedevisedforthepurposeandwhichspreads 3o bath composed ofCelluloid varnish or other the film more evenly than it can be spread by8o suitable varnish which will impart an acidhand, and then this coatingshould be dried proof coating to the sheet, this coating being andanother coating of different color applied indicated by the numeral 3.It is evident that over the first, and so on. Cards so treated prethecoating of celluloid varnish maybe applied sent a very peculiar andpleasing effect, as one 5 5 but to one side of the sheet, if so desired.After color melts away in the other. For landscape-*8 5 the coating lastnamed has been suitably dried work three or more colors may be employed,ac-

it is evident that the sheet is incased in a percordin g to taste or asthe Subj ect may require.

fect water and acid proof iilm,which, however, After drying by heat orotherwise the cardhas a comparatively rough or raw external board sheetis now ready for the cutting surface, and as this would showin thefinished or stamping machine, whereby it may be 9e photographs I placeupon the coating of celstamped or cut into such desirable sizes asluloid varnish upon one side of the sheet a may be required-viz.,cabinet, panel, 85e.- comparatively thick and smooth coating or andduring the stamping operation the carda series of superimposed coatingsof barium mounts so formed may or maynot be provided 45 nitrate, andgelatine of any suitable color or with the usual beveled edges..However, after 95 colors; or, if desircd,this coating or thesecoatcutting a large sheet up into small cardings may be composed of anyother harmless mounts it will be evident that the edges of material-suchas chalk-which will make a said card-mounts will be raw and must be verysmooth and polished surface. The sheet waterproofed unless thewaterproofing solu- 5o thus treated is now passed between polishing tionof insoluble soap penetrated throughout ma zoA the thickness of thesheet. These edges are now Waterproofed by handling them en block-thatis, one hundred, more or less. are clamped in a single package by meansof suitable clamps, and their edges are impregnated with a preferablyWarm mixture of rosin, parafne, white wax, and olive-oil, which may bepainted upon the edges of the card-mounts thickly and then dried byheat, whereby the above mixture will penetrate and saturate the edge ofevery single card and form thereon a waterproof shell 5. The card-mountsso prepared may now be worked through the different processes by thephotographer-viz., toning, fixing, and final washing-and the water andchemical solutions will not penetrate their edges, as will be readilyunderstood. It will thus be observed that I provide sensitizedwater-proof cards ready to print upon and the pictures being developeddirectly thereupon without the intervention of the usual sensitizedpaper. The cards so prepared should be preservedv in suitable envelopes,and after printing they are passed through the usual differentmanipulations of toning, fixing, and washing out of the sensitivecoating, and after this they can be either bodily drawn through awash-wringer or otherwise dried, and are then ready to be burnished, asno mounting or cutting of paper is necessary.

In some cases, instead of treating the sheets of card-board by thewaterproon g process above set forth, I may treatthe paper-pulp in thepaper-mill before it is rolled into sheets with insoluble soaps or otherwaterproofing material which will answer my purpose and then roll suchpulp into suitable sheets and afterward treat them with thecelluloidvarnish and colored chalks, and the effect will besubstantially the same in each case.

Thenoveltyandadvantagespossessedby my improved article and process overthe ordinary process of photographic printing are obvious.

First. No albumenized or specially -prepared paper is used, as suchnecessitates subsequent mounting on a card.

Second. The surface of my Water-proof cardmount is comparatively hardand produces what I may term a crystal gloss upon simple burnishing,which an ordinary paper does not.

Third. The thickness ofthe card-mount prevents all curling when placedin the solutions, which is evidently not the case with ordinary thinpaper, and therefore the cardmount is not liable to present the brokenor cracked surface, as it is of itself held in a flattened condition,andthere is no stretching of the paper, and consequently no distortion ofthe image, and a perfect copy is obtained.

Fourth. It will be observed that the sensitizing solution is coated upona hard and water-proof surface, which, as I have found by experiment,necessitates but about fifteenminutes washin g to make a permanentprint, as it is evident the chemicals used cannot penetrate thewaterproofed card, only the four to six hours Washing would benecessary.

Fifth. Ordinary mounting-that is, mounting an ordinary print-is entirelydone away with, and the consequent saving of perhaps twenty-five percent. of the work is accomplished in making and finishing photographs.

Sixth. A general saving in chemicals is accomplished, as nothing but thefilm or films are to be treated, there being no paper to absorb thechemicals.

Seventh. These card-mounts, as an article of manufacture or as anarticle of commerce, are always ready for use, as they may be preservedfor any length of time if properly packed.

Eighth. In using ordinary sensitized photographic paper blurred unsharpprints are often made, especially in damp weather or when the paper islaid upon the negative in a warm room and then exposed to the cold,expanding and contracting or Wrinkling the same, producing a double andblurred image. All these are simply impossible in using my improvedcard-mounts, for the reason that they are not subject to atmosphericinfluence. The card is too thick to change its position by the action ofheat or cold or dainpness, and therefore prints will always be producedof the utmost sharpness and definition.

Ninth. The card-mounts may be washed, fixed, and toned while held inordinary grooved boxes or racks so constructed as to prevent contact onewith another, and by this manner of working more even tones are secured,the results are more satisfactory, and the permanency may be guaranteed.

Tenth. The card-mounts present what I may term a crystalline surface,for the reason that without extra labor or enameling they have abrilliant or glossy surface resembling that of pure crystal.

Eleventh. By the ordinaryprinting process of the present time only twoor three slightlycolored papers can be used. By my invention almost anycolor. can be used as a ground for the picture with good success.

Twelfth. I propose to print any suitable matter in the form of lettersor pictures on the surface of the card-mounts before or after thecoating of barium nitrate has been applied, essentially before thesensitive coating has been applied. These letters or designs may beprinted in gold, as gold is ordinarily used 1n such work, they beingrepresented by the numeral 7, and then the sensitive coating may beapplied inthe manner before stated. This will produce a very attractiveand pleasing effect. Y

Thirteenth. Three or more distinct colors on one photograph can bebrought out by coating the cards with different-colored superimposedcoatings,as before stated, aniline IOO roi;

emulsions being preferred for this purpose and one color being appliedafterthe first has dried.

Fourteenth. I do not desire to limit myself to any particular thicknessof card-board, as it is evident I may make use of different thicknessesof same.

8 represents an additional coating of celluloid Varnish or otherwaterproofing material, Whichl sometimes apply over the coat or coatingsof colored surfacing material before mentioned, whereby said coat orcoatings will be made Water-proof. It will be observed that the colororiginally possessed by the cardboard will in no wise be impaired.

That l claim isl. Awater-proof photographic mount in the form of a cardhaving its edges coated with a mixture of rosin, wax,paraiiine, andolive-oil, substantially as herein specified.

2. A photographic paper card having a se- HENRY KUHN.

Witnesses:

C. K. JONES, JN0. C. HIGDON.

